Modular adaptor ring assembly for a night vision device



FIG. 1 is a front view thereof;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof, the bottom view and the left side view being identical thereto and the right side view is a mirror image thereof;

FIG. 4 is a perspective view thereof; and,

FIG. 5 is an exploded view thereof. 

The ornamental design for a modular adaptor ring assembly for a night vision device, as shown. 